Balancer Unit Assembly Note
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- Confirm by visual inspection that there is no damage to the balancer unit gear (see Figure) and verify that the shaft turns smoothly.
- If there is any damage or malfunction, replace the balancer unit.
CAUTION:- Due to the precision interior construction of the balancer unit, it cannot be disassembled.
- Install the SST as shown in the figure.
- Turn the crankshaft clockwise the crankshaft is in the No.1 cylinder TDC position (until the balance weight is attached to the SST ).
- Install the adjustment shim to the seat face of the balancer unit.
- With the balancer unit marks at the exact top center, assemble the unit to the cylinder block.
- Set the SST
as shown, then measure the gear backlash using a dial gauge.
NOTE:
- For an accurate measurement of gear backlash, insert a screwdriver into the crankshaft No. 1 balance weight area and set both the rotation and the thrust direction with the screwdriver, using a prying action, as shown in the figure.
- If the backlash exceeds the specified range, remeasure the backlash and, using the adjustment shim selection table, select the proper shim, according to the following procedure.
CAUTION:- When measuring the backlash, rotate the crankshaft one full rotation and verify that it is within the specified range at all of the following six positions: 10°, 30°, 100°, 190°, 210°, 280° ATDC.
Value Range
- 0.005-0.101 mm {0.00019-0.0039 in}
- Using master adjustment shim (No.50), assemble the balancer unit to the cylinder block, then measure the backlash.
- Select the proper adjustment shim according to the measured value.
- Install the selected adjustment shim to the balancer unit, then assemble the balancer unit to the cylinder block. See TORQUE SPECIFICATIONS table.